Web Server - Offline

I was just looking around my ISPConfig and I noticed that the webserver was offline! When I checked Apache it was fine...and my hosts are up. Not should what I should do or if I need to do anything? Any ideas?

Nope..thats whats so weird about this I have made only a minor change to the vhosts file and when I restarted hhtpd no errors jumped out everything started..all my hosted pages are up and running...the only thing that I just noticed is I can't make any changes within ISPConfig that need to be saved. I get this error,

"Your changes cannot be saved because this item is currently being updated. Please try again later."

Just to see if I created the problem I changed the vhosts file back and restarted httpd and then the whole system...nothing changed but the vhosts file. This is just weird!

PHP Notice: Undefined variable: HTTP_GET_VARS in /home/admispconfig/ispconfig/lib/config.inc.php on line 32
PHP Warning: Invalid argument supplied for foreach() in /home/admispconfig/ispconfig/lib/config.inc.php on line 32
PHP Notice: Undefined variable: HTTP_POST_VARS in /home/admispconfig/ispconfig/lib/config.inc.php on line 38
PHP Warning: Invalid argument supplied for foreach() in /home/admispconfig/ispconfig/lib/config.inc.php on line 38
PHP Notice: Undefined variable: HTTP_COOKIE_VARS in /home/admispconfig/ispconfig/lib/config.inc.php on line 44
PHP Warning: Invalid argument supplied for foreach() in /home/admispconfig/ispconfig/lib/config.inc.php on line 44
PHP Notice: Undefined variable: HTTP_GET_VARS in /home/admispconfig/ispconfig/lib/config.inc.php on line 53
sh: httpd: command not found
ls: /conf.d/*.conf: No such file or directory
sh: httpd: command not found
start
PHP Notice: Undefined variable: find in /root/ispconfig/scripts/lib/classes/ispconfig_system.lib.php on line 657
Segmentation fault

Not sure if I ran the second part of the code right...Should I have ran the code as 1 whole command or was it in 2 parts...sorry just making sure I'm doin it right!

Because I was having other issues I decided to re-install everything! I due have another question. What is the best way to backup most or all data on my linux box so I can recover as quickly as possible. I should've been doing this from day one and probably could have avoided this mess in the first place!